Devil Trigger

Devil Trigger is a special move that allows Dante to release his "Devil side". While in Devil Trigger-mode, Dante's appearance changes demonic and speaks with a raspy voice. Dante can also "charge" the Devil Trigger energies and release an explosion around himself, dealing large damage around the enemies. So far, only Dante, Vergil, Lucia, and Nero have access to this ability (though it should be noted that the circumstances that bring about Nero's devil trigger, and the look of the devil trigger itself, are much different than that of the other three). It is unknown whether Trish and Sparda's transformation counted as Devil Triggers, since they are pure Demons. Dante's appearance while Devil Trigger-ing changes throughout the series, thought his appearance resembles his father as the series progresses.

Effect and Powers while Devil Trigger-ing
While in Devil Trigger state, Dante's speed and strength increases, as well as having a "healing factor". Dante can also glides, although only several weapons skills in the series unlocks his flying ability. Vergil, on the other hand, has greater speed and strengh enchancement, however Vergil also has the ability to create a spherical barrier while releasing his devil powers. Nero, the protagonist of Devil May Cry 4 also has a devil trigger which seems to appear as a transluscent shadow of a demon that encompases his body. It's full abilities are currently unknown.

See also: Devil Trigger Forms